#!/bin/sh
#
# Helper to invoke mock from 'gbp buildpackage-rpm'
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, please see
#  <http://www.gnu.org/licenses/>
#
#  Copyright (C) 2015 Tzafrir Cohen
#            (C) 2015 Guido Günther

set -e

# There must be a saner way to do that or a reason why this is not required
fix_arch() {
	GBP_BUILDER_MOCK_ARCH=${GBP_BUILDER_MOCK_ARCH:-`uname -m`}
	case "$ARCH" in
	amd64) ARCH='x86_64';;
	esac
}


usage() {
	EXIT=${1:-1}
	echo >&2 "$0: Must be run via 'gbp buildpackage-rpm', see manpage for details"
	exit $EXIT
}

while [ $# != 0 ]; do
	case "$1" in
		--help|-h|-?) usage 0;;
		*.spec) SPEC="$1";;
	esac
	shift
done

# Make sure we have the necessary tools.
if [ ! -x /usr/bin/mock ]; then
    echo "mock not found; you need to install the mock package" >&2
    exit 1
fi

gbp_builder_mock() {
        if [ -z "$GBP_BUILDER_MOCK_DIST" ]; then
		usage
        fi
	local root=${GBP_BUILDER_MOCK_ROOT:-${GBP_BUILDER_MOCK_DIST}-${GBP_BUILDER_MOCK_ARCH}}
	if [ ! -d "$GBP_BUILDER_MOCK_EXPORT_DIR" ]; then
		echo >&2 "$0: Missing output directory (GBP_BUILDER_MOCK_EXPORT_DIR). Aborting."
		usage
	fi
        if [ -z "$SPEC" ]; then
		echo >&2 "$0: No specfile given."
		exit 1
        fi
	export_dir="$PWD"
	spec="$export_dir/SPECS/$SPEC"
	sources="$export_dir/SOURCES"
	srpms="$export_dir/SRPMS"
	pat="${GBP_BUILDER_MOCK_RESULTS_PAT-results/%(dist)s/%(target_arch)s/}"
	local resultdir="$export_dir/$pat"
	local mock="mock -r $root --resultdir=$srpms --spec=$spec --sources=$sources"

	$mock --buildsrpm
	# Assuming that nothing was built in this directory since the previous command:
	local srpm=`ls -t $PWD/SRPMS/*.src.rpm 2>/dev/null| head -n1`
	if [ -z $srpm ]; then
		echo >&2 "$0: failed to create srpm"
		exit 1
	fi
	$mock --no-cleanup-after --resultdir $resultdir --rebuild "$srpm"
}


fix_arch
gbp_builder_mock
